NK2021
NK2021 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Detroit to Tampa. Of 206 departures recorded from January 2025 to April 2026, 83.9% left on time, according to the US BTS.
- On-time departures83.9%of 206 flights
- Average delay6.1 min
- April 202614▲ 1,300.0%vs April 2025
- Cancelled6.8%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods12 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 24 | ▲ 4.3% |
| February | 28 | 28 | 0.0% |
| March | 4 | 31 | ▲ 675.0% |
| April | 1 | 14 | ▲ 1,300.0% |
| May | 27 | – | – |
| June | 11 | – | – |
| July | – | – | – |
| August | 14 | – | – |
| September | 1 | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Apr) | 56 | 97 | ▲ 73.2% |
according to the US BTS · January 2025 → April 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods12 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 95.7% | 87.0% | ▼ 9.1% |
| February | 96.4% | 90.9% | ▼ 5.7% |
| March | 100.0% | 80.8% | ▼ 19.2% |
| April | 100.0% | 50.0% | ▼ 50.0% |
| May | 80.8% | – | – |
| June | 60.0% | – | – |
| July | – | – | – |
| August | 78.6% | – | – |
| September | 100.0% | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Apr) | 98.0% | 77.2% | ▼ 21.3% |
according to the US BTS · January 2025 → April 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · January 2025 → April 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods12 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 6 | – |
| March | 0 | 5 | – |
| April | 0 | 0 | – |
| May | 1 | – | – |
| June | 1 | – | – |
| July | – | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Apr) | 0 | 12 |
according to the US BTS · January 2025 → April 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 93.2% 192
- Cancelled 6.8% 14
Share of all recorded flights in the period, all legs. · Jan 9, 2025 → Apr 14, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW TPA Detroit Metropolitan Wayne County Airport – Tampa International Airport | 1,585 | 9.2 min | 80.0% | 112 |
| LGA MIA LaGuardia Airport – Miami International Airport | 1,768 | -4.2 min | 96.4% | 55 |
| SAN LAS San Diego International Airport – Harry Reid International Airport | 417 | 11.2 min | 76.5% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2025 | 23 | 23 | 95.7% | 0 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 1 | 1 | 100.0% | 0 |
| May 2025 | 27 | 26 | 80.8% | 1 |
| June 2025 | 11 | 10 | 60.0% | 1 |
| August 2025 | 14 | 14 | 78.6% | 0 |
| September 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 24 | 23 | 87.0% | 1 |
| February 2026 | 28 | 22 | 90.9% | 6 |
| March 2026 | 31 | 26 | 80.8% | 5 |
| April 2026 | 14 | 14 | 50.0% | 0 |